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The motion of low orbit satellites can be approximated by saving that the needed centripetal acceleration for the circular orbit is equal to g= 9.8m/sec2 (the gravitational acceleration as observed on the surface of Earth). Using this assumption and neglecting any problem due to the atmosphere.
What is the orbital speed of the satellite?
Setting the radius of the orbit equal to the radius of the Earth Rt= 6400km. How long does it take for one orbit?
What is the weight of the astronauts on board of the satellite? Explain why?
A rock is shot vertically upward from the edge of the top of a tall building. The rock reaches its maximum height above the top of the building 1.30 s after being shot. find With what upward velocity was the rock shot
A 3.07 kg particle has a velocity of (3.10 i hat - 4.04 j hat) m/s. Find the magnitude and direction of its momentum
A 9.10 kg board is wedged into a corner and held by a spring at a 50° angle, as the Illustrating shows. The spring has a spring constant of 196 N/m and is parallel to the floor.
For each of these cases, decide whether or not the motion explained is an example of acceleration: An airplane starting to roll down the runway as it takes off. An airplane skidding to a stop on a runway. A football kicked straight up, at the peak of..
An automobile engine with an efficiency 0.23 dumps heat to the environment at the rate of 450 kW. Part A What's its mechanical power output in W? Part B What's its mechanical power output in hp?
the heating coil of a hot-water heater has a resistance of 20 and operates at 210 v. if electrical energy costs
Two power supplies are connected in series. The maximum voltage of each power supply is8.3V and 15.0V respectively, what is the resulting maximum voltage produced by the supplies
Presume we have two galaxies that are sufficiently far apart so that the distance among them increases due to Hubble's expansion. If I were to connect these two galaxies with a rope, would there be tension in the rope?
An airplane pulls a 24 kg banner on a cable as depicted in the figure below. When the plane has a constant cruising velocity the cable makes an angle of ? = 26°
A block of mass m1=3.20 kg on a frictionless plane inclined at angle 30 degrees is connected by a massless cord over a massless, Calculate the acceleration of each block
A proton is released from rest at the positive plate of a parallel-plate capacitor, What will be the proton's final speed if the experiment is repeated with double the amount of charge in each capacitor plate
The greatest ocean depths on the Earth are found in the Marianas Trench near the Philippines. Calculate the pressure due to the ocean
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